screen is flickering in ios on finger print authentication

[MSameerSrivastav]

I have been using this library for finger print authentication and I see it is working good in both android and ios.
When I use it with iOS, I observe the screen is getting flickered whenever I hit the touch sensor.

[mikehardy]

That's a system pop-up. the module just calls an API that says 'do the auth' and then has no control if I understand correctly. If you determine otherwise and figure out a remediation post a PR